As a way to find his father, a man in Hawaii took an Ancestry.com DNA test. He soon discovered he shared the same birth mother as someone else using the site: his best friend of 60 years.

Now in their 60s, Walter Macfarlane and Alan Robinson of Oahu recently learned that they are half-brothers. The men, both born and raised in Hawaii, are 15 months apart in age and used to play football together in high school. Macfarlane says that he and Robinson have been playing cribbage together all their lives.

Matthew Combs, a Fordham University Louis Calder Center Biological Field Station grad student worked with colleagues from Fordham and the Providence College Department of Biology to sequence the genomes of brown rats in Manhattan, and made a surprising discovery: the geography of rats has a genetic correlation, so a geneticist can tell where a rat was born and raised by analyzing its DNA.
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Strawberries are delicious, but is DNA extracted from strawberries delicious? Chemist NileRed extracted some DNA using food safe ingredients, then dried it and tasted it so we don't have to. Read the rest

In early 2016, comedian Larry David played beside Senator Bernie Sanders in an SNL skit. He also portrayed the Vermont politician in "Bern Your Enthusiasm," an SNL spoof of his own show Curb Your Enthusiasm.

David's performance was so spot-on that he received an Emmy award.

The pair learned earlier this year, by appearing on the PBS celebrity genealogy research show Finding Your Roots, that they are actually related. On Tuesday night, when the show's season four premiere aired, we got to see their reactions on learning that their DNA proves they are cousins.

The field of epigenetics continues to make interesting discoveries about environmental effects on genetic material. A team led by Thomas McDade found that children's experiences affected their DNA, which in turn affected suscepitability to certain diseases. Via Smithsonian:

Their investigation followed more than 500 children in the Philippines and found that certain childhood situations can create modifications in genes associated with inflammation, which affects how prone we are to suffer from certain illnesses. Specifically, these factors included socioeconomic status, the prolonged absence of a parent, the duration of breastfeeding, birth during the dry season, and exposure to microbes in infancy.

This cohort comprised over 3,000 pregnant women recruited in the Philippines in 1983. These women came from all different walks of life: They differed in access to clean water or a roof over their heads, whether they lived in an urban or a rural area, and whether they came into frequent contact with animals. From the data, they looked at over 500 of those women in order to figure out if their child’s environment growing up led to epigenetic modifications to their DNA—and later to a change in inflammatory proteins in their blood in adulthood.

Once their children were born, the investigators kept track of them and of the environments they were exposed to throughout their lives. Once they turned 21, the investigators took a blood sample that they used to measure the DNA methylation throughout their genome, as well as inflammation-related proteins that have been previously associated with cardiovascular diseases and other aging-related diseases.

In an astonishing step forward in biomolecular computing, Harvard researchers encoded a 19th century film clip in DNA and stored it inside living bacteria. Later, they sequenced the bacterium's genome and decoded the film. From IEEE Spectrum:

To get a movie into E. coli’s DNA, (neuroscientist Seth) Shipman and his colleagues had to disguise it. They converted the movie’s pixels into DNA’s four-letter code—molecules represented by the letters A,T,G and C—and synthesized that DNA. But instead of generating one long strand of code, they arranged it, along with other genetic elements, into short segments that looked like fragments of viral DNA.

E. coli is naturally programmed by its own DNA to grab errant pieces of viral DNA and store them in its own genome—a way of keeping a chronological record of invaders. So when the researchers introduced the pieces of movie-turned-synthetic DNA—disguised as viral DNA—E. coli’s molecular machinery grabbed them and filed them away.

No wonder Curb Your Enthusiasm's Larry David did such a great job impersonating presidential candidate Bernie Sanders last year on Saturday Night Live. The two are apparently related, perhaps as distant cousins.

Sanders is a "third cousin or something," David told reporters at a Television Critics Association event on Wednesday. The comedian, who impersonated the senator on "Saturday Night Live" during the 2016 election, said he learned about the genealogical connection while filming an upcoming episode of the PBS series "Finding Your Roots."

"I was very happy about that," David said, according to Variety. "I thought there must have been some connection."

We're still waiting to see how Sanders feels about his new extended family member.

British geneticist Adam Rutherford is one of the country's great science communicators, an alumnus of Nature whose work we've celebrated here for many years; with his second book, A Brief History of Everyone Who Ever Lived, Rutherford reveals how the century's astounding advances in genetic science reveal just how little we understand about our genes -- and how our ideas about race and heredity are antiquated superstitions that reflect our biases more than our DNA. (See the bottom of this post for an important update about the upcoming US edition!)

One of the most hotly-contested fields of genetics revolves around the genetic lineage of ancient Egyptians. A new study of 90 Pre-Ptolemaic, Ptolemaic, and Roman mummies raises as many questions as it answers. Read the rest

Here's a fascinating story about advances in forensic anthropology based around a creepy case of an archaeologist who had several open coffins full of human remains in his home. He said they were all legally taken from ancient Guatemalan sites, but new forensics methods showed that some of the bones were pretty new and of different races than the archaeologist claimed. Read the rest

The Turkish five lira note, issued in 2009, has a DNA helix. But Nobel laureate Aziz Sancar noticed that the note "shows a left-handed Z-DNA helix winding from left to right, when it should be the other way round." What Sancar doesn't know is that the monetary systems of the world are controlled by the lizard people, whose DNA is exactly like that depicted on the banknote. Read the rest

Artist Heather Dewey-Hagborg creates portraits from DNA samples, usually working from found samples -- chewing gum, cigarette butts -- of people she's never met. But this year, she's done a pair of extraordinary portraits of Chelsea Manning, the whistleblower currently serving a 35-year sentence in Fort Leavenworth for her role in the Wikileaks Cablegate publications.